Press "Open", "Close" or "Stop" after the railing barrier is powered on, but the equipment refuses to operate,the possible reasons are as follows.
a. No output voltage in the control box:a. Check whether the fuse in the control box is burned;
b. Check whether there is evident damage on electronic components on the control board Damaged capacitor during motor startup: Press ON/OFF button, there is vibration in the motor, but it refuses to operate. The capacitor may be damaged, and it shall be replaced.

The motor is burnt, and the judging methods are as follows:
a. Check whether the two outgoing lines of the motor are connected;
b. Check whether the smell of the insulating paint is very strong.Long-term conduction of photoelectric switch: Unplug the photoelectric switch plug-in unit, the railing barrier can be opened and closed. However, it does not work when the plug-in unit is plugged; it means that the photoelectric switch is damaged.The synchronization belt is broken. Open the top cover of the cabinet, and check whether the belt is broken.Small gear wheels are broken